[Sutanreyu]

I don't think dark matter exists? Some part of me wants to really sit down and formulate the possibility of 'banding' in spacetime: where there may be discrete "steps" in its density -- similar to the interference patterns when particles travel through a medium. The interactions between these waves can, at times, cancel out, or even repel, as waves do when propagating through matter...?

I've also always wondered about how we account for the physical presence of the astronomical objects now versus the observed position of those objects as they were, since light has taken however long to reach us...